Figure 6-1(b). Numbers of proliferating cells (left panel) and immature neurons (right panel) in the dentate SGZ are significantly decreased 48 hours after irradiation. Antibodies against Ki-67 and doublecortin (Dcx) were used to detect proliferating cells and immature neurons, respectively. Doses from 2 to 10 Gy significantly (p < 0.05) reduced the numbers of proliferating cells. Immature neurons were also reduced in a dose-dependent fashion (p<0.001). Each bar represents an average of four animals; error bars, and standard error (Mizumatsu et al., 2003).
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]